Dropdown filter count update functionality using react and typescript

I am looking for a skilled developer with experience in react and typescript to help me complete my project. Currently, the dropdown filter count update functionality is in progress and I need it to be completed within a week. The specific feature I want to include in the functionality is to show the count of items per category. Additionally, I would like the functionality to allow filtering by multiple categories at once. If you have the necessary skills and experience, please apply for the job. Thank you.

Required Skills:
- React
- Typescript

Ideal Experience:
- Previous experience in building dropdown filter count update functionality
- Experience in working with large datasets
- Attention to detail and ability to meet deadlines